One proposes to use the framework of idempotent tropical mathematics, such as (min,+)-dioidalgebra to build promising processing tools based on the so-called (min,+)-wavelets which are able for example to compute easily Hölder exponents for signals such as Weierstrass Functions, scaling functions and singular spectra of Man-delbrot Binomial Measures and Riemann Series. Comparisons to theoretica land/or numerical results will be exhibited.